Separable slide fastener



Oct. 27,1942. P. s. KELLUM 2,300,369

SEPARABLE SLIDE FASTENERl Filed Aug. 12, 1941 I I 2 Sheets-Sheet 1 Y .5 2 7 z2 v w ,20 J I ff ov 7 .9

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72 'fz .3f /J ff- Lf INVENTOR Pau] 5. Afef/am Oct. 27, 1942. P. s. KELUUM SEPARABLE lsLirDE FASTENER Filed Aug. 12. 1941 2 Sheets-Sheet 2 INVENTOR,

i which:

UNITED STATES 15A-'lj SEPARABLE sLInErAs'rEsnR.

`raul s. xe'uumNewar'k, N. J.,

Fastener Corporation tion of Delaware assignor to Crown l Wan-cm3. I., a corpora- Appiicatiqn August 12, 1941, serial No. 406.446

where complete separation o f the parts of a gar- 3. claims. (ci. 24-205) provided with. a socket I3.

" In accordance .with the inventions. pin I is' stringere. 'I'he pin hasnient are required as, for example, in the case of coats, jackets and the like. With such devices mismeshing-of the fastener elements occurs unless the elements are properly realgned after separation.

'I'he principal object of the present invention movement of thefslide in one direction-and is connected to one of the arpivot portion -P which pivots in contact with one of` the walls of the slide, as will 'be subse-A quently more fully explained. In accordance with the invention the pin I5 also has a tapered portion which may be formed as shown, by providing a recess I8 on one side, and a bevelled portion I9 on the other side, and at the end o'pposite the tapered portion the pin is provided is to provide improved structure to prevent mismeshing.

. The principles of the invention will be de-` lined in the claims ultimately appended hereto and will be illustrated by the following description takenwin conjunctionlwith the. drawings, in

Fig'. 1 shows the slide in engagement with the box member for entry of the pin intothe socket of said box member;

Fig. 2 shows therpin in locking engagement with the box member and the slide moved a short. distancefaway from the box;

Fig. 3 shows the pin outof engagement with the box and plvoted in the' slide;l

Fig. 4 shows another view where the pinfis out of engagement with the box and pivoted in the Fig. 5 shows still another view ,where the pin isuout of engagement with the box and pivoted in the slide;

` Figs. 3 to 5 inclusive show the slide in different l pgsitions in` relation to the box;

"Figa 6 is a section on the line 6 6' ofA Figf'Z; Fig. .7 is a section on the linefI-'I of Fig; 2; Fig. 8 is a transversesectionthrough the pin on one of the tapes, on-the line '8 3 of Fig. 2;

it'will be/noted that the wail 8 of with a projection 20 'which preferablyis in the form of a fastening element or scoop,'rigidly and preferably integrally Joined to the pin I5. In accordance with the invention a recess 22 is provided adjacent said projection -20 to receive a complementary projection 2 6` on4 the stud 24. It will thusbe seen that the pivot portion P of the pin is intermediate the ends thereof and is adapted to pivotally and sligably engage'the side wall 9 of the slide, which wall is preferably curved or arcuate, as shown.

In accordance with the invention the stop member I2-carries a stud 24 to which the beaded edge I of the stringer is connected. The stud 24 is-provided on one side with a recess 25 `complementary to (and adapted to receive) a portion of the side wall 8 of the slide 6, and on the other 26- adapted to engage the recess 22 -in the vpin I5. The stud 24 preferably tion 28adjacent thesocket I3 in thestop. Y.

. Fig.. 1 shows the 'slidein place at the box or stop I2 for properentry o f the pin I5 to engage the socket I3. With the parts in this position the slideengages the recess'25 in the stud 24 therebycaus- I ing the slide to be displaced to the right as sh'own,

40othus increasing the-clearance between the stud The invention employs'certain conventional .I elements including a pair of stringers or tapes Y having beaded edges I, 2, carrying fastener ele-l` ments or scoops 3, 4i. The slide 3 may have the conventional structure shown and it therefore.

will sumce to state thatit has' a constricted-f throatportion and diverging channels defined by top and bottom wings and a pair of ared side walls 8, 9, the wings being connected by a web Vor frog 7.' Each of the side walls 8, 9, comprises twol parts separated by a slot to permit Ythe movement of the stringersr orf/tapes there-` through. The separable end4 connection includes a stop member or box I Z'Which serves to limit A24, and the wall 9 .of the slide andfacilitating proper entry ofthe pin I5 into I:the socket I3. Owing to this clearance and' the bevelled portion nog the pm wand u jacent the pivot portion P of the pin, the latter slidably pivots in contact withvthe wall 9 of the slide and n iakes-"jpropell engagement withtheY socket I 3, the shoulder 30 of the pin'engaging the upper -edge 3| of the wall of the socket I3.

Fig..2 shows the pin I5 in proper engagement with the stop I2 and socket I3., 'With the parts in this .position-no mismeshing can occur. 'Fig.-2 also shows the slide -dra`wn starting to cause meshing Aof the interlocking has a bevelled porthe recessilIB-onV the pin adparitvwa-y up and :lust` members orscoops-L 'Itwiil be noted that-.the

v lstud 24 and the wall 9 of cient topermit proper 4 the stud.

. the force at this point acting on The slide can-however stationary andin the to prevent mismeshing contact is made Awith one P.' The force applied i -wardly to the. position shown in a to 5, inclusive, it

stationary cannot occur because axisifthe pin is 2. e wal1 8 of the slideridesl overthecam surface of the throat or. neck ofthe total maximum width of the stud 24 and pin the recess 25 and that the slide thereby moves tothe left. The width of Y fastener elements (see Fig. an effective maxi-- the slide is equal to or very slightly greater I5 when properly engaged as shown in Fig. 2, so

that the slide properly clears the stud and-pin and acts to cause proper meshing of the fastener elements 4 oneof which 2D, as already stated, is preferably integrally joined-to the'pin.

Figs. 3, 4 and 5-show the slide in tions when the pin socketand illustrate typical positions where mismeshing may occur which, howevenis. prevented in accordance with the present invention.

Fig. 3 shows the tche box or stop I2 but still in contact with the stud 24. In this .case the clear ce between the the s de is not sufiientry of the pin I5 into the socket I3. If an attempt is made to move `the slide upwardly the pin contacts theprojection 26 on lthe stud at occurs, the pin acting as a lever Y separated by a the stringers, said device also having a separable the point Fi and a leverage action then or pivot about the pivot point P, thus causing the pin to contact the stud not only at the point F1 but also at the point F2 so movementof the slide with the pin stationary or downward movement of the pin with theslide stationary is prevented. downwardly to the position shown `in Fig. 1 for proper entry of the pin into the socket.

Fig. 4 shows the slide moved away from the stop a further distance but stillein contactwith If an attempt is made to move the slide upwardly with that upward The slide can be movedi various posi- -l has not properly engaged the slide draw slightly away from -of this angular displacement is to-give the'pin and stud (see Figs. -3 and 4) or the pin and mum width greater than the width ofthe throat ing by preventing movement of the kind described. I

The invention provides means to pivot the pin within the slide tol cause .said angular displacement of the longitudinal axis of the pin. This means includes the pivot portion? of'the pin and the tapered portion thereof. It may also in- Aclude the stud 24 with its lateral projection 28 as shown in Figs. 3 and 4. It may also includethe projection or'integral link 20 functioning as Ashown in Figs. 4 and 5.v It may also include the projection or 'link 20 and a fastener element 33,

-functioning as .shown in Fig. 5.

Iclaim 1'. In a device o f the class described having a pair of 'stringers carrying fastener elements, a

.slide having a constricted throat portion and diverging channels defined by -top and bottom wings and a pair of'iiared side walls connected' by a frog, each slot to permit the' movement of end connection for said stringers including a the pin stationary and in the position shown, or to move the pin down- .wardly with the shown, the action to prevent follows: The pincontacts th point P, then the projectio slide stationary in slide wall 9 at the with the pin stationary and in the position shown 26-at point F2 and the pin functionpin. to `contact the frog pin thus become position shown since the the positionv mismeshing isas portion and on that or to move the pin downwardly `with the slide position shown, the action is asfollows: Upon entry vchannel of the slide Vas shown of the links or scoops of the pin into the 33 at point Fi and-with the slide at Fm then causes the pin to act pivotallyabout the portion P whereby the projection or'link'zq F1. The pin and slide are thusreleasably locked in the position shown and no mismeshing canA Fig. 1, for proper occur. The slide can however `be moved downentry of the pin -into the socketl I3.

contacts the frog I at point wall-9 atpoint In all the cases specificallyl illustrated in Figs.

ofthe slide upwardlywith the pin stationary or movement of the .pin downwardly with the slide the longitudinal angula'rly displaced in relation to an axis passing through the center of the will benoted that movement stop member to limit movement of the slide in one direction anda socket therein; the improvement providing means to prevent misrneshing of said fastener.- elements, said means comprising` a pin joinedto one, o'f -said stringers and adapted to pass through one of the channels of the slide, said pin being tapered at one end to facilitate engagement of said pin with the socket, said pin having a pivot portion intermediateA the -ends thereof adaptedto Fengage one side Vwall of the slide anda fastener element said pinvat'the end ereof opposite the tapered ide of the pin opposite the pivot portion; and a stud carried by the stop member and adjacent the socket-thereof and attached to the other of said stringers, -said Astud .having a recess on one 'side thereof adapted to receive a portion of the other side wall of the slide and a lateral projection on the .other side of said stud. s 2. In a device of the class described having a `pair of stringers carrying fastener elements, a',

slide having a constricted throat portion and diverging channels defined. by top and bottom wings and a pair offlared side walls connected by a frog, each side wall comprising two parts separated by a s lot to'permit the movement vof the stringers, said device also having a separable end connection f or said stringers including-a stop member to -limit movement of the slide in one direction and 'a socket therein; providing means to'prevent. mismeshing of said fastener elements, said means comprising a pin joined to one of said stringere and adapted to pass throughone of the channels of the slide, said pin having a tapered portion at one end thereof and an enlarged pivot portion intermediate between said tapered portion and the `other end of the pin to prevent relative movement of the pin within'the slide when lthe latter is not in contact with said stop.

3. In av device of the class described having a .pair of stringere carrying fastener elements, a

throat and the centerof the frog. The T'esult 75 by a frog,

` slide having a constricted throat portion and dlverging channels defined by top and bottom'.

wings and a pair'of dared side walls connected side wall comprising two parts rigicuy ioined to.

the improvement Y each side wall Acomprising two parts separated by* a. slot to permit the movement of comprising a pin joined to one of said stringers and .adapted to pass through one oi' the channels ofthe slide and to slidably pivot therein; a stud carried by said stop member and-attached to the other 'of said stringers, 'said stud having ra A -recess therein which in operation -of the device receives a portion of one wall of said slide and thereby effects a lateral shifting of the slide s to facilitate said pivoting of' the pin and engagement thereof with the socket.

PAUL si KELLUMQ v 

